Mk 2 SIP ROAD UPDATE

[fredperrybruce]

Hi guys,,, Just an update on the new SIP Road on my DR 177 set up

The Exhaust arrived today so I rushed to my garage to install,,

After about 30 mins trying to line up the fixing bolt due to the nut having /6mm play from side to side on the exhaust I managed to bolt the thing on and have a play,,, WOW WOW WOW what a huge difference the exhaust makes I cannot tell you!! My whole rev range is just perfect.

To be honest I almost S**t myself when I pulled off in 2nd as the front end wanted to lift and fly away with me. Much more quieter than my Pinasco and so much more smoother.. I need to take out for a proper run and maybe tweek my jetting but so far the results are great !!

Happy days!!

[rab]

you will probably find you like it as it is and wont bother tweaking the jets. i have my dr180 on a 20 mil carb with factory jetting and a sterling exhaust + b8 plug. all i did was put my modded air filter in after i had run it in and it flys to 60 wants to wheelie in first and second and because i did not re fit my 24 mil carb im getting an extra 30 mile out of a tank of fuel.because the kit is running on the 20 mil and not the 24 its also not getting the life beet out of it lol

[partanen]

Isn't there a risk of holed piston, if you use too small jets?

[henri]

thats auto-lube jetting , if pre-mixing ive always gone up 2 , px125=98 px150=102 , allows for volume of oil going thru jet aswell as petrol. H

[rab]

im pre mixing thinking back i do remember the main was uprated as it was giving poor performance even at low speed when running in. it was not getting enough fuel i dont know what the main is now but ill be checking all i know is its running spot on now and using a lot less fuel than the molossi a lot less noise from the head and getting the same pull power and speed on a 20/20 carb